Agreed. There is a hitch with mandatory vaccinations, but I think that is solvable, and most vaccines for things we actually worry about breaking out again seem to be very low risk. My guess is that even if all vaccines were optional the vast majority of the normal ones would still be widely used. Flu shots and COVID would probably be the ones with low uptake. (Of course there is debate as to whether they are even vaccines properly understood, but I am going to nope out of that one :) )